Re: [Qemu-devel] [RESEND][PATCH] APIC: Do not start zero-period timers

[Anthony Liguori]

Jan Kiszka wrote:
> The APIC timer must not start when the initial count is (still) zero.
>
> This caused occasional stalls when booting secondary CPUs of Linux SMP
> guests.
>   

Applied.  Thanks.

Besides testing, I confirmed that this is what's done in the in-kernel 
APIC in KVM (which is also used by Xen).  It seems really unfortunate to 
me that there are fixes in the in-kernel APIC that aren't in QEMU (and 
perhaps vice-versa).  I wonder if there's any way to unify the two code 
bases?

Regards,

Anthony Liguori